package com.ms.demo.demo2;

/**
 * @description: 创建NonTerminalExpression非终结表达式
 * @author: ms
 * @create: 2022-10-28 11:31
 */
public abstract class NonTerminalExpression implements Expression{

    Expression e1,e2;
    public NonTerminalExpression(Expression e1, Expression e2){
        this.e1 = e1;
        this.e2 = e2;
    }
}